Cumulenes in Click Reactions

Cumulenes are organic molecules with two or more cumulative(consecutive) double bonds. Their reactions often proceed at roomtemperature, with or without a catalyst, and are stereospecific,giving the reaction products in high yields featurescharacteristic of click reactions . presents acomprehensive list of cumulene systems and their reactions, with anemphasis on their click-like nature. The chapters arestructured according to the number of carbon atoms in the system,including coverage of:introduction to the chemistry of cumulenes one-carbon cumulenes: sulfines, sulfenes, thiocarbonylS-imides, thiocarbonyl S-sulfides, and 1-aza-2-azoniaallenesalts two-carbon cumulenes: carbon oxides, carbon sulfides, carbonnitrides (isocyanates, isothiocyanates, and carbodiimides),phosphaallenes, and diarsaallenes 1,2-dicarbon cumulenes: ketenes, thioketenes, ketenimines,1-silaallenes, 1-phosphaallenes, and other metal allenes 1,3-dicarbon cumulenes: thiocarbonyl S-ylides, 2-azaalleniumsalts, 1-oxa-3-azoniabutatriene salts, 1-thia-3-azoniabutatrienesalts, and phosphorous ylides 1,2,3-tricarbon cumulenes: allenes, butatrienes, highercumulenes and heterobutatrienes noncarbon cumulenes: azides, triazaallenium salts, sulfuroxides, sulfur nitrides, N-sulfinylamines, sulfurdiimides, anddithionitronium cationis an essential guide forresearchers and advanced students in academia and research workingin synthetic organic, inorganic and bioorganic chemistry.